GB619661A - Improvements in or relating to electro-magnetic relays - Google Patents

Improvements in or relating to electro-magnetic relays

Info

Publication number
GB619661A
GB619661A GB37410/46A GB3741046A GB619661A GB 619661 A GB619661 A GB 619661A GB 37410/46 A GB37410/46 A GB 37410/46A GB 3741046 A GB3741046 A GB 3741046A GB 619661 A GB619661 A GB 619661A
Authority
GB
United Kingdom
Prior art keywords
switch
drum
armature
dec
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB37410/46A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB619661A publication Critical patent/GB619661A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
    • H01H51/082—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism
    • H01H51/086—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism with radial ratchet elements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Structure Of Telephone Exchanges (AREA)

Abstract

619,661. Electromagnetic switches. STANDARD TELEPHONES & CABLES, Ltd. Dec. 19, 1946, No. 37410. Convention date, Dec. 8, 1944. [Class 38 (v)] In an electromagnetic time-delay switch, a self-interrupting magnet 1 rotates a shaft 14 step-by-step by a ratchet-and-pawl mechanism 28, 29 and a second electromagnet 24 attracts an armature 10 so as to bring a point 12 into engagement with a threaded drum 32 on the shaft 14 so that the armature 10 is moved perpendicular to the plane of the paper till the point 12 escapes from the drum and an arm 17 moves to operate contacts 20, 21, 22, 23. Fig. 4 shows one form of threaded drum. The circuit arrangement may be as in Fig. 5, operation being started by closing the switch 35 and the interrupter, which is of the kind described in Specification 619,660, causing a contact 9 to reciprocate between contacts 7 and 8. When the switch 35 is opened, the circuit to the magnet 24 is broken and a spring 16 returns it to its original position.
GB37410/46A 1944-12-08 1946-12-19 Improvements in or relating to electro-magnetic relays Expired GB619661A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR910658T 1944-12-08

Publications (1)

Publication Number Publication Date
GB619661A true GB619661A (en) 1949-03-11

Family

ID=9413331

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37410/46A Expired GB619661A (en) 1944-12-08 1946-12-19 Improvements in or relating to electro-magnetic relays

Country Status (2)

Country Link
FR (1) FR910658A (en)
GB (1) GB619661A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE950392C (en) * 1952-12-04 1956-10-11 Standard Elek K Ag Electromagnetic relay with indirectly operated contacts

Also Published As

Publication number Publication date
FR910658A (en) 1946-06-14

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